// Copyright 2018 Proyectos y Sistemas de Mantenimiento SL (eProsima).
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------
// Modification history:
// feature: Code style modification
// ------------------------------------------------------------------

#ifndef SRC_CPP_SECURITY_ACCESSCONTROL_GOVERNANCEPARSER_H_
#define SRC_CPP_SECURITY_ACCESSCONTROL_GOVERNANCEPARSER_H_

#include <security/accesscontrol/CommonParser.h>

#include <string>
#include <utility>
#include <vector>

namespace evbs {
namespace ertps {
namespace rtps {
namespace security {

enum class ProtectionKind { NONE, SIGN, ENCRYPT, SIGN_WITH_ORIGIN_AUTHENTICATION, ENCRYPT_WITH_ORIGIN_AUTHENTICATION };

struct TopicRule {
    std::string topic_expression;
    bool enable_discovery_protection;
    bool enable_liveliness_protection;
    bool enable_read_access_control;
    bool enable_write_access_control;
    ProtectionKind metadata_protection_kind;
    ProtectionKind data_protection_kind;
};

struct DomainRule {
    Domains domains;
    bool allow_unauthenticated_participants;
    bool enable_join_access_control;
    ProtectionKind discovery_protection_kind;
    ProtectionKind liveliness_protection_kind;
    ProtectionKind rtps_protection_kind;
    std::vector<TopicRule> topic_rules;
};

struct DomainAccessRules {
    std::vector<DomainRule> rules;
};

class GovernanceParser {
 public:
    bool parse_stream(const char* stream, size_t stream_length);

    void swap(DomainAccessRules& rules);

 private:
    bool parse_domain_access_rules_node(tinyxml2::XMLElement* root);

    bool parse_domain_access_rules(tinyxml2::XMLElement* root);

    bool parse_domain_rule(tinyxml2::XMLElement* root, DomainRule& rule);

    bool parse_topic_access_rules(tinyxml2::XMLElement* root, std::vector<TopicRule>& rules);

    bool parse_topic_rule(tinyxml2::XMLElement* root, TopicRule& rule);

    DomainAccessRules access_rules_;
};

}  // namespace security
}  // namespace rtps
}  // namespace ertps
}  // namespace evbs

#endif  // SRC_CPP_SECURITY_ACCESSCONTROL_GOVERNANCEPARSER_H_
